• Editors' Suggestion

Anisotropy of spin-transfer torques and Gilbert damping induced by Rashba coupling

I. A. Ado, P. M. Ostrovsky, and M. Titov
Phys. Rev. B 101, 085405 – Published 7 February 2020

Abstract

Spin-transfer torques (STT), Gilbert damping (GD), and effective spin renormalization (ESR) are investigated microscopically in a two-dimensional Rashba ferromagnet with spin-independent Gaussian white-noise disorder. Rashba spin-orbit coupling-induced anisotropy of these phenomena is thoroughly analyzed. For the case of two partly filled spin subbands, a remarkable relation between the anisotropic STT, GD, and ESR is established. In the absence of magnetic field and other torques on magnetization, this relation corresponds to a current-induced motion of a magnetic texture with the classical drift velocity of conduction electrons. Finally, we compute spin susceptibility of the system and generalize the notion of spin-polarized current.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 6 July 2019
  • Revised 24 December 2019
  • Accepted 24 December 2019

DOI:https://doi.org/10.1103/PhysRevB.101.085405

©2020 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

I. A. Ado1, P. M. Ostrovsky2,3, and M. Titov1,4

  • 1Radboud University, Institute for Molecules and Materials, NL-6525 AJ Nijmegen, The Netherlands
  • 2Max Planck Institute for Solid State Research, 70569 Stuttgart, Germany
  • 3L. D. Landau Institute for Theoretical Physics RAS, 119334 Moscow, Russia
  • 4ITMO University, Saint Petersburg 197101, Russia

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 101, Iss. 8 — 15 February 2020

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×